Through this program, OJJDP seeks to support its National Girls Institute (NGI) to advance the understanding and application of promising and evidence-based prevention, intervention, treatment, and aftercare programs and services for at-risk and juvenile justice- involved girls. NGI accomplishes its mission through a broad range of activities, including training and technical assistance (TTA); information dissemination; collaboration with researchers and program developers; partnership with federal, state, and local agencies; policy development; and other leadership functions.